Category Halide minerals Crystal system Monoclinic | Formula(repeating unit) MnCuCl(OH)3 Space group P21/m | |
Crystal class Prismatic (2/m)(same H-M symbol) Unit cell a = 5.622, b = 6.586c = 5.719 [Å]; β = 91.55°; Z = 2 | ||
Iyoite is a very rare manganese copper chloride hydroxide mineral with the formula MnCuCl(OH)3. Iyoite is a new member of the atacamite group, and it an analogue of botallackite characterized in manganese and copper ordering. Iyoite is monoclinic (space group P21/m). It is chemically similar to misakiite. Both minerals come from the Ohku mine in the Ehime prefecture, Japan.
References
Iyoite Wikipedia(Text) CC BY-SA